SSD1801AV ETC [List of Unclassifed Manufacturers], SSD1801AV Datasheet - Page 41

• Manufacturer Part Number: SSD1801AV
• Description: LCD Segment / Common Driver with Controller for Character Display System
• Manufacturer: ETC [List of Unclassifed Manufacturers]

SOLOMON
1. Function set (00010X2X1X0)
2. Contrast control register setup
3. Power save (power save off; OSC on)
4. Power control (turns on the internal regulator and turns on the
internal divider)
5. RAM address set
6. Data writing (RAM clear)
(DDRAM=20h, CG/ICONRAM=00h)
7. Display control (turns on the display) (There is an auto mask
off period ~ 260ms)
(Recommended minimum reset pulse width is 10ms)
Recommended INITIALIZING of SSD1801
DV
Send reset pulse to the RES pin.
DD
/AV
Waiting for 10usec
End of initialization
Command Input
CC
Command Input
Command Input
-DV
Figure 26 - Recommended INITIALIZING of SSD1801
Data Input
SS
/AV
SS
Power On
NOTE:
At instructions 1-6, the minimum clock cycle
time is 650ns for PPI. For details, pls refer
to the SSD1801 datasheet “AC
Characteristics”.
At 5 and 6, the internal RAM should be
cleared.
To clear DDRAM, set address at 00h (first
DDRAM) and then write 20h (space
character code) 64times.
To clear CGRAM, set address at 40h (first
CGRAM) and then write 00h (null data) 64
times
To clear ICONRAM, set CONRAM address
at 00h (first ICONRAM) and then write 00h
(null data) 16 times
No delay between each Command/Data
input under ideal timing situation (No time
shift in any signals, refer to page 32 for
details )
Rev 1
01/2003
.
1
SSD1801 Series
40